The modern-day Namib desert has been arid for at least 15 million years, when the extinct relatives of ostriches laid their eggs, which are like time capsules of ancient air. JP Koch/Red Dune Safaris

Oxygen atoms in 15‑million‑year‑old giant eggshells reveal how plants reacted to a hotter Earth – study

Scientists have extracted atoms from eggshells that are 15 million years old which reveal how plants responded to high levels of carbon dioxide.
Moyo Studio/Getty Images

Why Africa’s young scientists should help check the quality of climate change research

Global scientific reports about climate change are largely written and reviewed by older researchers from the global north.

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